A354839 - cp's OEIS frontend

A354839 Beginning with 0, smallest positive integer not yet in the sequence such that the concatenation of two digits of the sequence separated by a comma is prime.

n	a(n)
0	0
1	2
2	3
3	1
4	7
5	9
6	70
7	5
8	30
9	20
10	21
11	10
12	22
13	31
14	11
15	12
16	32
17	33
18	13
19	14
20	15
21	34
22	16
23	17
24	18
25	35
26	36
27	19
28	71
29	37
30	38
31	39
32	72
33	90
34	23
35	73
36	74
37	75
38	91
39	76
40	77
41	92
42	93
43	78
44	94
45	79
46	700
47	24
48	100
49	25
50	95
51	96
52	101
53	97
54	98
55	99
56	701
57	102
58	300
59	26
60	103
61	104
62	105
63	301

[0, 2, 3, 1, 7, 9, 70, 5, 30, 20, 21, 10, 22, 31, 11, 12, 32, 33, 13, 14, 15, 34, 16, 17, 18, 35, 36, 19, 71, 37, 38, 39, 72, 90, 23, 73, 74, 75, 91, 76, 77, 92, 93, 78, 94, 79, 700, 24, 100, 25, 95, 96, 101, 97, 98, 99, 701, 102, 300, 26, 103, 104, 105, 301]

cp's OEIS Frontend

A354839 Beginning with 0, smallest positive integer not yet in the sequence such that the concatenation of two digits of the sequence separated by a comma is prime.

Table of values

List of values

n	a(n)
0	0
1	2
2	3
3	1
4	7
5	9
6	70
7	5
8	30
9	20
10	21
11	10
12	22
13	31
14	11
15	12
16	32
17	33
18	13
19	14
20	15
21	34
22	16
23	17
24	18
25	35
26	36
27	19
28	71
29	37
30	38
31	39
32	72
33	90
34	23
35	73
36	74
37	75
38	91
39	76
40	77
41	92
42	93
43	78
44	94
45	79
46	700
47	24
48	100
49	25
50	95
51	96
52	101
53	97
54	98
55	99
56	701
57	102
58	300
59	26
60	103
61	104
62	105
63	301

n	a(n)
0	0
1	2
2	3
3	1
4	7
5	9
6	70
7	5
8	30
9	20
10	21
11	10
12	22
13	31
14	11
15	12
16	32
17	33
18	13
19	14
20	15
21	34
22	16
23	17
24	18
25	35
26	36
27	19
28	71
29	37
30	38
31	39
32	72
33	90
34	23
35	73
36	74
37	75
38	91
39	76
40	77
41	92
42	93
43	78
44	94
45	79
46	700
47	24
48	100
49	25
50	95
51	96
52	101
53	97
54	98
55	99
56	701
57	102
58	300
59	26
60	103
61	104
62	105
63	301

n	a(n)
0	0
1	2
2	3
3	1
4	7
5	9
6	70
7	5
8	30
9	20
10	21
11	10
12	22
13	31
14	11
15	12
16	32
17	33
18	13
19	14
20	15
21	34
22	16
23	17
24	18
25	35
26	36
27	19
28	71
29	37
30	38
31	39
32	72
33	90
34	23
35	73
36	74
37	75
38	91
39	76
40	77
41	92
42	93
43	78
44	94
45	79
46	700
47	24
48	100
49	25
50	95
51	96
52	101
53	97
54	98
55	99
56	701
57	102
58	300
59	26
60	103
61	104
62	105
63	301